package com.hmall.common.config;

import com.hmall.common.interceptor.LoginInterceptor;
import lombok.RequiredArgsConstructor;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.DispatcherServlet;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

//含义就是只有当前springboot工程内置的是servlet3.0规范的容器tomcat时,才初始化这个配置类
@ConditionalOnClass(DispatcherServlet.class)
@Configuration
@RequiredArgsConstructor
public class MvcConfig implements WebMvcConfigurer {
    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        //注册拦截器
        registry.addInterceptor(new LoginInterceptor());
    }
}
